Table 1 Clinical and radiological characteristics in the training and test groups
Variable | Training cohort (N = 48) | Test cohort (N = 33) | ||||
|---|---|---|---|---|---|---|
G1 | G2/3 | P-value | G1 | G2/3 | P-value | |
Age | 50.87 ± 12.44 | 50.94 ± 15.96 | 0.597 | 41.60 ± 12.33 | 47.15 ± 13.74 | 0.276 |
Maximum diameter | 23.13 ± 12.03 | 37.47 ± 18.55 | 0.005 | 23.17 ± 16.19 | 38.70 ± 20.38 | 0.022 |
Gender | 0.938 | 0.478 | ||||
0 | 20(64.52) | 10(58.82) | 13(65.00) | 6(46.15) | ||
1 | 11(35.48) | 7(41.18) | 7(35.00) | 7(53.85) | ||
Shape | 0.007 | 0.047 | ||||
0 | 8(25.81) | 12(70.59) | 3(15.00) | 7(53.85) | ||
1 | 23(74.19) | 5(29.41) | 17(85.00) | 6(46.15) | ||
Margin | 0.210 | 0.012 | ||||
0 | 2(6.45) | 4(23.53) | 0(0.00) | 5(38.46) | ||
1 | 29(93.55) | 13(76.47) | 20(100.00) | 8(61.54) | ||
Echo | 0.402 | 0.398 | ||||
0 | 6(19.35) | 1(5.88) | 3(15.00) | 0(0.00) | ||
1 | 25(80.65) | 16(94.12) | 17(85.00) | 13(100.00) | ||
Uniformity | 0.434 | 0.146 | ||||
0 | 15(48.39) | 11(64.71) | 9(45.00) | 10(76.92) | ||
1 | 16(51.61) | 6(35.29) | 11(55.00) | 3(23.08) | ||
Calcification | 1.000 | 0.826 | ||||
0 | 30(96.77) | 17(100.00) | 18(90.00) | 7(53.85) | ||
1 | 1(3.23) | 0(0.00) | 2(10.00) | 6(46.15) | ||
Cystic areas | 1.000 | 0.051 | ||||
0 | 30(96.77) | 16(94.12) | 18(90.00) | 7(53.85) | ||
1 | 1(3.23) | 1(5.88) | 2(10.00) | 6(46.15) | ||
Location | 0.97 | 1.000 | ||||
0 | 13(41.94) | 8(47.06) | 11(55.00) | 7(53.85) | ||
1 | 18(58.06) | 9(52.94) | 9(45.00) | 6(46.15) | ||